The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
May. 19, 2026
Filed:
Sep. 30, 2019
Mitsubishi Electric Corporation, Tokyo, JP;
Mitsubishi Electric Building Solutions Corporation, Tokyo, JP;
Kiyotaka Watanabe, Tokyo, JP;
Takuya Hashiguchi, Tokyo, JP;
Takaya Taniguchi, Tokyo, JP;
Seiichi Kumagai, Tokyo, JP;
Yoshiko Ono, Tokyo, JP;
Kotaro Watanabe, Tokyo, JP;
Kyohei Yamanaka, Tokyo, JP;
MITSUBISHI ELECTRIC CORPORATION, Tokyo, JP;
MITSUBISHI ELECTRIC BUILDING SOLUTIONS CORPORATION, Tokyo, JP;
Abstract
There is provided an elevator rope tension measurement system that can reduce measurement error when the tension of the rope of an elevator is quantitatively measured. An elevator rope tension measurement system includes a vibration waveform collection unit configured to collect a vibration waveform of a rope of an elevator; and a frequency calculation unit configured to select, based on a measurement resolution calculated from a collection time period and a collection cycle for collecting the vibration waveform by the vibration waveform collection unit, a method for calculating a frequency of the vibration waveform collected by the vibration waveform collection unit.